空间区域聚集查询方法研究

doi:10.3778/j.issn.1002-8331.2009.25.041

计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (25): 135-137.DOI: 10.3778/j.issn.1002-8331.2009.25.041

空间区域聚集查询方法研究

梁银^1,2，张虹¹

1.中国矿业大学环境与测绘学院，江苏徐州 221008
2.徐州师范大学计算机科学与技术学院，江苏徐州 221116

收稿日期:2009-05-26 修回日期:2009-06-29 出版日期:2009-09-01 发布日期:2009-09-01
通讯作者: 梁银

Efficient method for spatial range aggregate query

LIANG Yin^1,2，ZHANG Hong¹

1.School of Environment Science and Spatial Informatics，China University of Mining and Technology，Xuzhou，Jiangsu 221008，China
2.Department of Computer Science and Technology，Xuzhou Normal University，Xuzhou，Jiangsu 221116，China

Received:2009-05-26 Revised:2009-06-29 Online:2009-09-01 Published:2009-09-01
Contact: LIANG Yin

摘要/Abstract

摘要： 为了提高空间数据仓库中区域聚集查询的响应性能，通过使用R_tree对空间维进行分层后，采用物化视图存储空间对象及R_tree中间结点的聚集信息，能够有效地支持空间维和非空间维上的区域聚集查询。

关键词: 空间区域聚集查询, 物化视图, 空间联机分析处理

Abstract: To improve response performance of range aggregate queries in spatial data warehouse，R-tree index is employed to derive the spatial hierarchies on spatial dimension for pre-aggregation and materialization.Materialized views store the aggregate values of spatial object or internal nodes of R-tree.Therefore，range aggregate queries on both non-spatial dimensions and spatial dimensions can be effectively processed without visiting spatial objects whose parent node is fully included in the query range，by using the aggregate values of internal nodes in the materialized view.

Key words: spatial range aggregate query, materialized view, spatial On-Line Analysis Processing

中图分类号:

TP311

梁银^1,2，张虹¹. 空间区域聚集查询方法研究[J]. 计算机工程与应用, 2009, 45(25): 135-137.

LIANG Yin^1,2，ZHANG Hong¹. Efficient method for spatial range aggregate query[J]. Computer Engineering and Applications, 2009, 45(25): 135-137.

空间区域聚集查询方法研究

Efficient method for spatial range aggregate query

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